The trouble with that site is that it doesn't show a wider picture
FOr example oif *(say) you wanted to cut a tier of middle management from NHS costs, it shows as X days of NHS availability. And wouldn't mean that at all.
If you wanted to means test CB or fuel allowance it shows as £X a week off the pension
Which frankly is odd.
Becuase very few people want to cut the weekly pension or NHS availability but recognise that savings can be amde in less painful ways.